Home / 13,124.71-18,115.55-7,462.77

Finding the Fourth Proportional to 13,124.71, 18,115.55 and 7,462.77

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Solution

The fourth proportional to 13,124.71, 18,115.55 and 7,462.77 is: 10,300.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,124.71 : 18,115.55 = 7,462.77 : x
  2. Step 2: Convert to fraction form
    13,124.71/18,115.55 = 7,462.77/x
  3. Step 3: Cross multiply
    13,124.71x = 18,115.55 × 7,462.77
  4. Step 4: Simplify right side
    13,124.71x = 135,192,183.07
  5. Step 5: Solve for x
    x = 135,192,183.07/13,124.71
  6. Step 6: Final answer
    x = 10,300.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.